So problem was my texture settings were stuck to ultra where i wanted to play it on high. Because ultra settings were causing major stuttering in cut-scenes and gameplay both. But option to change texture to high was grayed out.

So here are few things you can do, if in a similar situation:

Changing Texture Resolution Quality in GameProfile.xml

For Windows 7) Go to "C:\Users\UserName\Documents\My Games\Watch_Dogs\*\GameProfile.xml" (Or figure out where GameProfile.xml is stored in your PC) and open this GameProfile.xml in text editor like Notepad."

In '<quality..../>' change "TextureResolutionQuality=" to high instead of ultra.

Save GameProfile.xml and start Watch Dogs and enjoy.

Less Watch Dogs Game stuttering along with higher graphics settings

This is may be issue with Windows Systems with less amount of RAM, say 4GB. To solve it do following:

Create a new shortcut to game, (Right click to GameLauncher.exe and select create shortcut)

Edit newly created shortcut, go to Target field and add "-disablepagefilecheck" (without the quotation marks) at the end of your game exe path.

Launch game and enjoy Watch Dogs with less or minimum amount of Shuttering.

Microsoft has reveale that the upcoming OS for PCs "Windows 8" will feature Xbox Live integration. The news was confirmed by Mike Delman, Microsoft’s vice president of global marketing in an interview to The Seattle Times.

Delman said, Live has been successful on the Windows Phone. Live will be built into the PC. It will be the service where you get your entertainment. We were talking about it — you will not just see consoles and handhelds at this show next year, this show’s going to morph into other devices.

In an interview Delman also revealed how the service and content will be part of Windows 8.

There will be a lot of similarities in design and service philosophy. Whether it’s us or Apple or anybody else, people want to be able to navigate through multiple devices in a certain ecosystem very seamlessly so we’re committed to that.